Answer / gunasekaran

rated KV*percentage impedance we can get impedance voltage.
then applied voltage*rated current/rated impedance voltage
for example
) Power transformer, 33/11KV, 5MVA, 87. 5A/262.5A
Z = 6.81% at principal tap, mains voltage : 372V
6.81% of 33KV = (33000 x 6.81/100) = 2247.3V
2247.3V will deliver rated current of 87.5A on
short circuit.
372V will deliver a short circuit current of (372 x
87.5 / 2247.3) = 14.48A
At principal tap, short circuit current on HV side
= 14.48A.
Short circuit current on LV side = (14.48 x
33/11) = 43.45A

Answer / harshita

short circuit is caused by connecting a small wire between
ends of positive and negative terminals

Answer / moti rgpv

SHORT CIRCUIT CURRENT IS DEPEND UPON TYPE OF FAULT OCCURE.
BY DESIGN EQUIVELENT CKT OF PERTICULAR FAULT.
WE CAN GET SC CURRENT

why induction motor having low power factor at starting time and high at full load.

6 Answers   BARC, HPB,

---

What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?

0 Answers  

---

what is the eight bit unit?

0 Answers  

---

What is the deffirant between EARTH, GROUND AND NUTRAL

4 Answers  

---

Differcence between UPS and Inverter.

4 Answers   Adani,

---

How many safety of Disel Generator

5 Answers   Sail,

---

there is a # KVA Transformer of 11 KV/440V, in simple(not use formuia) how can you calculate it's HT & LT side current.

5 Answers   Construction, wbsedcl,

---

can we synchronize star system generators with delta system generators?

0 Answers  

---

How many points can we have in AC Circuit? Show by giving suitable example?

3 Answers  

---

What is the main use of rotary phase converter ?

0 Answers  

---

WHY FEEDERS TRIP IN COLD AND FOGY WEATHER?

2 Answers  

---

We store the d.c supply...then why can't we store A.c supply???

4 Answers  

---